Question: When was Luca Ceriscioli the head of government for Marche?
Paraphrase: Marche's Head of Goverment was Luca Ceriscioli during what period?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q1279 p:P6 ?s . ?s ps:P6 wd:Q3838079 . ?s pq:P580 ?value}